POSITIONING STRAIGHT BLOCK SETS –PL INSTALLATION/L DIMENSION SHORT TYPE–
Part Number
Bolt hole Installation bolts d t
Dismounting tap N
E
L T T 1
T 2
V
C P
ℓ
Type
A
20 25 30
6 8 8
1223 814100.5
6.5 3.5
M3 Bolt
M4
4
–
TTSB
15 28 10 17 12
1
8
4.5
M4 Bolt
M5
10 15 15
32 12 19
40
20
15
6
28
VTTSB
43
25
17
2
(50)
25 46
28 20
35 9.5 5.5
M5 Bolt
M6
E A50 is available for precision TTSB only.
Part Number – E TTSB20 – 6
Delivery Quotation
Order
T V Tolerance Positioning Precision (Clearance) ① Pin ② Bushing
Precision Rank
V dimension symmetry against A plane
Example
Part Number
Material
H Hardness
M
0 –0.005 0 –0.003
+0.01 +0.005 +0.003 0
TTSB
Precision
0.005–0.015
0.003 or less
SKD11
58–62HRC
Extra precision
VTTSB
(Match mark type)
0.006 or less
• A20/25/30
Space
Cavity insert
Cavity insert
Cavity insert
① Pin
② Bushing
0 －
0 －
A
Space
A
0.005
0.005
C
C
■ Charac- teristics
Spaces may be taken on insert cavity direction even for no space molds and small molds.
To position the surrounding of insert cavity, adds relieves on two sides of pin.
The line–up of positioning precision and size is done, which can also be used in positioning insert cavity.
E About identification mark of extra precision (VTTSB)
• Suitable for positioning in precision molds such as connector and electronic device. • It is capable of preventing wear and damage in core pins since it can be positioned before core pins and such are inlayed on cavity. • Use precision leader pins since clearance is fairly small.
• Dimension A is finished by processing the pin and bushing united. • Do use it by the same combination matching the direction of identification mark.
V
Part a
V
d
Part b
2 － R ≦ 1
2 － R0.5
■ When using • When the convex side and a concave side knock against each other, it causes damage. Please open about 1mm and use it. • For VTTSB, clearance of pin and bushing is small and dimension A is finished by processing the pin and bushing united. Take great care of plate processing. • VTTSB is not applicable to molds that counter change pins and bushings by rotating the mold, such as the 2–color molding.
d
AAA AAA
4 － C1
4 － C1
VTTSB20 － 6
N (Dismounting tap) N (Dismounting tap)
When positioning is begun
Mold closed
S (Effective length max.)
E
• A40/50
6 8
4.0 5.5 7.5
② Bushing
① Pin
0 －
0 －
10 15
Details of part a
Details of part b
A
A
0.005
0.005
11.5
C0.5
P
P
C
C
R
R
V
V
Part a
d
Part b
2 － R0.5
2 － R ≦ 1
d
4 － C1
4 － C1
N (Dismounting tap)
N (Dismounting tap)
863
864
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